The Boulevard Saint-Germain (French pronunciation: [bulvaʁ sɛ̃ ʒɛʁmɛ̃]) is a major street in Paris on the Left Bank (south side) of the Seine river. It curves in a 3.5 kilometer arc from the Pont de Sully in the east (the bridge at the edge of the Île Saint-Louis) to the Pont de la Concorde (the bridge to the Place de la Concorde) in the west and traverses the 5th, 6th, and 7th arrondissements. At its midpoint, the Boulevard Saint-Germain is traversed by the north-south Boulevard Saint-Michel. The boulevard is most famous for crossing the Saint-Germain-des-Prés quarter from which it derives its name.